A 10.0 g object moving to the right at 17.0 cm/s makes an elastic head-on collision with a 15.0 g object moving in the opposite direction at 35.0 cm/s. Find the velocity of each object after the collision.
in every type of collision momentum is conserved
so in an elastic collision
velocity of approach=velocity of separation
u=final velocity of 10 g object
v= final velocity of 15 g object.
from equation 1
from conservation of momentum we have,
substituting the value of v
from equation 2
so after collision the velocity of 10g object= -45.4cm/s or -45 cm/s
and velocity of 15 g object=6.6cm/s or 7cm/s
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